| article html file updated | 8 February 2020 15:55 CET | Update | https://www.mdpi.com/2071-1050/9/9/1570 |
| article html file updated | 27 September 2019 01:58 CEST | Update | - |
| article html file updated | 3 May 2019 02:29 CEST | Update | - |
| article html file updated | 30 September 2017 13:31 CEST | Update | - |
| article html file updated | 12 September 2017 08:24 CEST | Original file | - |
| article xml uploaded. | 12 September 2017 08:23 CEST | Update | https://www.mdpi.com/2071-1050/9/9/1570/xml |
| article xml uploaded. | 12 September 2017 08:23 CEST | Original file | - |
| article pdf uploaded. | 12 September 2017 08:23 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/9/1570/pdf |
